diff --git a/pyproject.toml b/pyproject.toml
index 0cbf7c0..4a4ab91 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -57,7 +57,7 @@ backoff = ">=1.4.3"
 certifi = ">=2018.4.16"
 expiringdict = ">=1.1.4"
 pyrfc3339 = ">=1.0"
-jsonpickle = "0.9.3"
+jsonpickle = ">1.4.1"
 semver = ">=2.7.9"
 urllib3 = ">=1.22.0"
 jinja2 = "3.0.0"